diff --git a/update_depdendencies.sh b/update_depdendencies.sh
new file mode 100755
index 000000000..13ecb7191
--- /dev/null
+++ b/update_depdendencies.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+OSMIUM_REPO=https://github.com/osmcode/libosmium.git
+OSMIUM_TAG=v2.3.0
+
+VARIANT_REPO=https://github.com/mapbox/variant.git 
+VARIANT_TAG=v1.0
+
+
+git subtree pull -P third_party/libosmium/ $OSMIUM_REPO $OSMIUM_TAG --squash
+git subtree pull -P third_party/variant/ $VARIANT_REPO $VARIANT_TAG --squash